Although there is only one train in this shot, the picture still helps demonstrate how busy the Orin Sub in the Powder River Basin is. This westbound (geographically northbound) empty is crossing over from Main 3 to Main 2 at Reno Jct. This is because a BNSF load will be heading eastbound on Main 3 before long. Meanwhile, a UP load getting a fresh crew will come out on Main 1 from Black Thunder Mine shortly to head eastbound as well.
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